Furnace Make Up Air

Two existing building practices affecting makeup air are causing increasing problems for homeowners.

Furnace make up air.

There are two basic ways for your furnace to get its combustion air. Department of energy a defining feature of high efficiency furnaces is sealed combustion a process by which outdoor makeup air is piped directly into the burner. Homes are getting tighter and trendy multiple burner stoves require more powerful range hoods to exhaust heat and moisture. According to the u s.

Makeup air and dedicated outdoor air systems. Using a forced air heating system to drive make up air. Effective make up air systems in houses with forced air heating. Make up air is designed to make up the air in your interior space that has been removed due to process exhaust fans.

Most high efficiency furnaces get their combustion air directly from the outside. Connect an outside air duct to the plenum on the furnace if the house has a forced air heating and cooling system. If your furnace has two pvc pipes going to the outside then one of those pipes is taking the flue gases out and one is bringing fresh air in for combustion. Indoor separated combustion make up air dbs dcs the modine indoor separated combustion duct furnace with blower and or cooling sections was designed for use with a building s heating heating ventilating cooling and make up air systems.

These are through the wall systems that balance the amount of outgoing air with an equal amount of incoming air. The air that enters cracks in a home s envelope to replace air that is exhausted is called makeup air. In a house with a forced air heating system the furnace fan and distribution. Standard and high cfm blower cabinets are designed to be mounted on a common heavy duty skid rail with up to three outdoor gas fired duct furnaces.

Incoming air can be heated with electric resistance strips. Our diverse line of hvac equipment encompasses heating cooling and even dehumidification capabilities for both makeup air mua and dedicated outdoor air system doas applications. Sterling models rt and pv indirect fired make up air systems are available in multiple configurations and vary depending on the specific application. The illustration below shows one example of the necessary.

This is the best and most efficient way to do it. This is called a direct vent furnace. Other cabinets include filter damper cabinets downturn plenums coil cabinets with factory installed coils and evaporative coolers. What is make up air.

Using a duct heater fan assembly.